CN106328362B - A kind of toroidal transformer - Google Patents
A kind of toroidal transformer Download PDFInfo
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- CN106328362B CN106328362B CN201510355585.3A CN201510355585A CN106328362B CN 106328362 B CN106328362 B CN 106328362B CN 201510355585 A CN201510355585 A CN 201510355585A CN 106328362 B CN106328362 B CN 106328362B
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Abstract
The present invention provides a kind of toroidal transformers.The toroidal transformer, including：At least one first annular magnetic core (41)；At least one second toroidal core (42)；And it is centered around external the first winding (5) of the first annular magnetic core (41) and the second winding (6) and is centered around the tertiary winding (7) of the first annular magnetic core (41) and the second toroidal core (42) outside；Any one in first winding (5) and second winding (6) is connected in series with the tertiary winding (7).Said program, by the way that reactor is integrated in transformer, reactor does not generate leakage magnetic flux while leakage inductance is generated in transformer, the design of transformer of such integrated reactor alleviates the weight of device, the size of device is reduced, while reduces power consumption, improves the service efficiency of transformer.
Description
Technical field
The present invention relates to technical field of electronic products, more particularly to a kind of toroidal transformer.
Background technology
In traditional transformer, leakage inductance can be obtained by connecting external add-in reactor, the reactor and transformer
Armature winding connection or connect with the secondary windings of transformer, these modes are all that inductance is individually provided for transformer
Enough electric leakage inductance value, it is this with leakage although the electric leakage inductance value of needs can be obtained by external additional reactor
Magnetic flux generates stray field, added losses and the noise that the mode of enough leakage inductances will generate bigger；This design simultaneously, makes
Circuit, magnetic circuit are bulky, the working efficiency of transformer is reduced while the weight and cost for increasing transformer.
As shown in Figure 1, independent transformer and independent additional reactor, specific connection mode are used in traditional design
For：20 independent design of transformer 10 and additional reactor is provided with the first winding 1 and the second winding 2 on magnetic core of transformer 101,
The tertiary winding 3, last circle 12 of first winding 1 and the first of the tertiary winding 3 are provided on reactor core 201
Circle 31 is connected, the first circle 11 of first winding 1 and last input terminal of circle 32 as transformer 10 of the tertiary winding 3；
First circle 21 of second winding 2 and last output terminal of circle 22 as transformer 10.
Invention content
The technical problem to be solved in the present invention is to provide a kind of toroidal transformers, independent to solve existing generally use
Reactor provide electric leakage inductance value for transformer, but it is such enough leakage inductances are generated by leakage magnetic flux in a manner of will generate bigger
Stray field, added losses and noise；This design simultaneously so that circuit, magnetic circuit are bulky, in the weight for increasing transformer
The problem of reducing the working efficiency of transformer while amount and cost.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of toroidal transformer, including：
At least one first annular magnetic core 41；
At least one second toroidal core 42；And
The first winding 5 and the second winding 6 that are centered around outside the first annular magnetic core 41 and it is centered around described first
The tertiary winding 7 outside 41 and second toroidal core 42 of toroidal core；
Any one in first winding 5 and second winding 6 is connected in series with the tertiary winding 7.
Further, the first annular magnetic core 41 is the main magnetic circuit of transformer, and second toroidal core 42 is simultaneously
The main magnetic circuit of reactor and the leakage magnetic flux magnetic circuit of transformer, and second toroidal core 42 is arranged on the first annular magnetic
In the centre bore of core 41.
Further, the upper surface of the upper surface of the first annular magnetic core 41 and second toroidal core 42 or described
The lower surface of the lower surface of first annular magnetic core 41 and second toroidal core 42 at least one be located in same level.
Further, second toroidal core 42 be arranged on coiling complete after the first winding 5 and the second winding 6 the
The central hole of one toroidal core 41.
Further, when the tertiary winding 7 and first winding 5 are connected in series with, first winding 5 last
Circle 52 and the first circle 71 of the tertiary winding 7 are connected in series with, the first circle 51 of first winding 5 and the tertiary winding 7
Last input terminal of circle 72 as the toroidal transformer, the first circle 61 and last circle 62 of second winding 6 are made
Output terminal for the toroidal transformer.
Further, when the tertiary winding 7 and second winding 6 are connected in series with, second winding 6 last
Circle 62 and the first circle 71 of the tertiary winding 7 are connected in series with, the first circle 51 of first winding 5 and last 52 conduct of circle
The input terminal of the toroidal transformer, last 72 conduct of circle of the first circle 61 and the tertiary winding 7 of second winding 6
The output terminal of the toroidal transformer.
Further, first winding 5 is the armature winding of the toroidal transformer, and the toroidal transformer is at least
Include an armature winding；Second winding 6 is the secondary windings of the toroidal transformer, and the toroidal transformer is at least
Include a secondary windings.
Further, it when the tertiary winding is multiple, is arranged in parallel between the multiple tertiary winding described first
The outside of 41 and second toroidal core 42 of toroidal core.
Further, first winding 5, the second winding 6 and the tertiary winding 7 are outside the first annular magnetic core 41
Diameter is spaced apart on surface.
Further, it is both provided with insulating layer on first winding 5 and second winding 6.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In said program, by the way that reactor is integrated in transformer, while reactor generates leakage inductance in transformer
Leakage magnetic flux is not generated, the design of transformer of such integrated reactor alleviates the weight of device, reduces the size of device, simultaneously
Power consumption is reduced, improves the service efficiency of transformer.
Description of the drawings
Fig. 1 is the equivalent circuit line graph that separated transformer is connected with independent additional reactor winding in the prior art；
The toroidal transformer schematic diagram of Fig. 2 embodiment of the present invention；
The toroidal transformer of Fig. 3 embodiment of the present invention radially cross section view；
Fig. 4 is the equivalent circuit line graph of the embodiment of the present invention one shown in FIG. 1；
Fig. 5 is the equivalent circuit line graph of the embodiment of the present invention two shown in FIG. 1.
Specific embodiment
To make the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention provides electric leakage inductance value for the individual reactor of existing generally use for transformer, but such with leakage
Magnetic flux generates stray field, added losses and the noise that the mode of enough leakage inductances will generate bigger；This design simultaneously, makes
Circuit, magnetic circuit are bulky, the problem of reducing transformer working efficiency while the weight and cost for increasing transformer,
A kind of toroidal transformer is provided.
As shown in Figures 2 and 3, the toroidal transformer of the embodiment of the present invention, including：
At least one first annular magnetic core 41；
At least one second toroidal core 42；And
The first winding 5 and the second winding 6 that are centered around outside the first annular magnetic core 41 and it is centered around described first
The tertiary winding 7 outside 41 and second toroidal core 42 of toroidal core；
Any one in first winding 5 and second winding 6 is connected in series with the tertiary winding 7.
It should be noted that the first annular magnetic core 41 is main magnetic circuit (the i.e. described first annular magnetic core 41 of transformer
For magnetic core of transformer), second toroidal core 42 is simultaneously the main magnetic circuit of reactor and leakage magnetic flux magnetic circuit (the i.e. institute of transformer
The second toroidal core 42 is stated as reactor core), the magnetic conductivity of the first annular magnetic core 41 and second toroidal core 42
It can be the same or different, specific magnetic conductivity setting numerical value is determined by the use environment of the toroidal transformer, specifically,
It is centered around the armature winding and be centered around the transformation that the first winding 5 outside the magnetic core of transformer is toroidal transformer
The second winding 6 outside device magnetic core is the secondary windings of toroidal transformer.
Specifically, second toroidal core 42 is arranged in the centre bore of the first annular magnetic core 41, also, described
First annular 41 and second toroidal core 42 of magnetic core is located on same coordinate plane, i.e., the upper surface of described first annular magnetic core 41
With the upper surface of second toroidal core 42 or the lower surface of the first annular magnetic core 41 and second toroidal core 42
Lower surface at least one be located in same level.
It should be noted that when the first annular magnetic core 41 is by multiple form, when the multiple first annular magnetic core
It is that concentric stack is set when radius size is identical, between the multiple first annular magnetic core 41；When the multiple first annular magnetic
It is coordinate surface setting altogether with one heart during core radius size difference, between the multiple first annular magnetic core 41, similarly, when described the
When second ring magnetic core 42 is by multiple form, set-up mode and the multiple first ring-like magnetic between the multiple second toroidal core 42
The set-up mode of core 41 is similar.
Said program, by the way that reactor is integrated in transformer, while reactor generates leakage inductance in transformer not
Leakage magnetic flux is generated, the design of transformer of such integrated reactor alleviates the weight of device, reduces the size of device, drop simultaneously
Low power consumption improves the service efficiency of transformer.
As shown in Figure 2, Figure 3 and Figure 4,5 and second winding 6 of the first winding is enclosed in the first ring of toroidal transformer 4
The outside of shape magnetic core 41, the tertiary winding 7 are enclosed in the second toroidal core 42 of reactor 40 and toroidal transformer 4 simultaneously
First annular magnetic core 41 outside, the tertiary winding 7 of the embodiment of the present invention one and first winding 5 are connected in series with
When, last circle 52 of first winding 5 is connected in series with the first circle 71 of the tertiary winding 7, first winding 5
Last input terminal of circle 72 as the toroidal transformer of first circle 51 and the tertiary winding 7, second winding 6
First circle 61 and last output terminal of circle 62 as the toroidal transformer.
As shown in Fig. 2, Fig. 3 and Fig. 5,5 and second winding 6 of the first winding is enclosed in the first ring of toroidal transformer 4
The outside of shape magnetic core 41, the tertiary winding 7 are enclosed in the second toroidal core 42 of reactor 40 and toroidal transformer 4 simultaneously
First annular magnetic core 41 outside, the tertiary winding 7 of the embodiment of the present invention two and second winding 6 are connected in series with
When, last circle 62 of second winding 6 is connected in series with the first circle 71 of the tertiary winding 7, first winding 5
First circle 51 and last input terminal of circle 52 as the toroidal transformer, the first circle 61 of second winding 6 with it is described
Last output terminal of circle 72 as the toroidal transformer of the tertiary winding 7.
It should be noted that the specific tertiary winding 7 and the armature winding on the magnetic core of transformer or secondary
Winding connection is determined by the use environment of transformer.
Said program, the tertiary winding and the first winding or the tertiary winding and the second winding pass through welding, brazing filler metal
Mode be connected in series so that the tertiary winding become transformer winding a part, it should be noted that winding
Coiling and winding between connection mode to be well known to those skilled in the art, be no longer described in detail herein.
Specifically, the assembling process of the toroidal transformer is specially：Armature winding and secondary windings are enclosed in respectively
The first annular magnetic core outside (it should be noted that the armature winding being enclosed in outside first annular magnetic core and it is secondary around
Insulation processing is needed between group, insulation processing mode described here is generally set on armature winding and secondary windings respectively
Insulating layer), then second toroidal core is placed on first annular after coiling completion armature winding and secondary windings
Then the first annular magnetic core and second toroidal core are enclosed in one by the central hole of magnetic core simultaneously with the tertiary winding
It rises, is finally connected in series with the tertiary winding and any one in the armature winding and the secondary windings, formation one is whole
Body.It should be noted that the toroidal transformer of the complete winding of coiling, the armature winding, secondary windings and the tertiary winding
It is spaced apart on the external diameter surface of the first annular magnetic core.
It should be noted that the armature winding, secondary windings and the tertiary winding can be one can also be provided with it is more
It is a, it is parallel connectivity between the multiple same type winding.
Said program of the present invention avoids and individual reactor is used to provide electric leakage inductance value for transformer, but it is such with
Leakage magnetic flux generates stray field, added losses and the noise that the mode of enough leakage inductances will generate bigger；This design simultaneously,
So that circuit, magnetic circuit are bulky, the working efficiency of transformer is reduced while the weight and cost for increasing transformer
Problem, by the way that transformer and reactor are integrated into an entirety, reactor generates leakage inductance in transformer, while does not generate leakage
Magnetic flux, such design reduce circuit, magnetic circuit volume, improve the working efficiency of transformer.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, under the premise of principle of the present invention is not departed from, several improvements and modifications can also be made, these improvements and modifications should also regard
For protection scope of the present invention.
Claims (9)
1. a kind of toroidal transformer, which is characterized in that including：
At least one first annular magnetic core (41)；
At least one second toroidal core (42)；And
It is centered around external the first winding (5) of the first annular magnetic core (41) and the second winding (6) and is centered around described the
One toroidal core (41) and the tertiary winding (7) of the second toroidal core (42) outside；
Any one in first winding (5) and second winding (6) is connected in series with the tertiary winding (7)；
Wherein, the first annular magnetic core (41) is the main magnetic circuit of transformer, second toroidal core (42) while for reactance
The main magnetic circuit of device and the leakage magnetic flux magnetic circuit of transformer, and second toroidal core (42) is arranged on the first annular magnetic core
(41) in centre bore.
2. toroidal transformer according to claim 1, which is characterized in that the upper surface of the first annular magnetic core (41) with
The upper surface of second toroidal core (42) or the lower surface of the first annular magnetic core (41) and second toroidal core
(42) lower surface at least one be located in same level.
3. toroidal transformer according to claim 1, which is characterized in that second toroidal core (42) is arranged on coiling
Complete the central hole of the first annular magnetic core (41) after the first winding (5) and the second winding (6).
4. toroidal transformer according to claim 3, which is characterized in that the tertiary winding (7) and first winding
(5) when being connected in series with, last circle (52) of first winding (5) is connected with the first circle (71) of the tertiary winding (7)
Connection, the first circle (51) of first winding (5) become with last circle (72) of the tertiary winding (7) as the annular
The input terminal of depressor, the first circle (61) of second winding (6) is with last circle (62) as the defeated of the toroidal transformer
Outlet.
5. toroidal transformer according to claim 3, which is characterized in that the tertiary winding (7) and second winding
(6) when being connected in series with, last circle (62) of second winding (6) is connected with the first circle (71) of the tertiary winding (7)
Connection, the first circle (51) of first winding (5) and last input terminal of circle (52) as the toroidal transformer, it is described
Last circle (72) of the first circle (61) of second winding (6) and the tertiary winding (7) is as the defeated of the toroidal transformer
Outlet.
6. toroidal transformer according to claim 1, which is characterized in that first winding (5) is the annular transformation
The armature winding of device, and the toroidal transformer includes at least an armature winding；Second winding (6) becomes for the annular
The secondary windings of depressor, and the toroidal transformer includes at least a secondary windings.
7. toroidal transformer according to claim 1, which is characterized in that the multiple when the tertiary winding is multiple
The outside in the first annular magnetic core (41) and the second toroidal core (42) is arranged in parallel between the tertiary winding.
8. toroidal transformer according to claim 1, which is characterized in that first winding (5), the second winding (6) and
The tertiary winding (7) is spaced apart on first annular magnetic core (41) external diameter surface.
9. toroidal transformer according to claim 1, which is characterized in that first winding (5) and second winding
(6) insulating layer is both provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510355585.3A CN106328362B (en) | 2015-06-25 | 2015-06-25 | A kind of toroidal transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510355585.3A CN106328362B (en) | 2015-06-25 | 2015-06-25 | A kind of toroidal transformer |
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| CN106328362A CN106328362A (en) | 2017-01-11 |
| CN106328362B true CN106328362B (en) | 2018-07-10 |
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| CN201510355585.3A Active CN106328362B (en) | 2015-06-25 | 2015-06-25 | A kind of toroidal transformer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020001811A1 (en) * | 2018-06-29 | 2020-01-02 | Sew-Eurodrive Gmbh & Co. Kg | Transformer with ring core and system for supplying electrical power to a load |
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| CN201210442Y (en) * | 2008-05-09 | 2009-03-18 | 广东科旺电源设备有限公司 | Novel high resistance self-coupled transformer |
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| CN202003816U (en) * | 2011-03-22 | 2011-10-05 | 江苏上能新特变压器有限公司 | Inverse transformer |
| CN202159565U (en) * | 2011-05-26 | 2012-03-07 | 上海兆启新能源科技有限公司 | Transformer for photovoltaic inverter |
| CN102646499A (en) * | 2012-05-23 | 2012-08-22 | 镇江天力变压器有限公司 | Dry type transformer with secondary iron core for electric locomotive |
| CN102867628A (en) * | 2012-09-29 | 2013-01-09 | 湖南大学 | Magnetic integration type integrated filter inductance transformer |
| CN103151147A (en) * | 2013-03-07 | 2013-06-12 | 明珠电气有限公司 | Isolation transformator for filter circuit and filter circuit system |
| CN203941798U (en) * | 2014-06-23 | 2014-11-12 | 长沙长源变压器有限公司 | Integrated high leakage reactance auxiliary transformer |
| CN104715906A (en) * | 2015-02-12 | 2015-06-17 | 明珠电气有限公司 | Dry-type transformer for photovoltaic power generation and photovoltaic inversion system |
| CN204927007U (en) * | 2015-06-25 | 2015-12-30 | 特富特科技(深圳)有限公司 | Toroidal transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201301315A (en) * | 2011-06-24 | 2013-01-01 | Delta Electronics Inc | Magnetic element |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210442Y (en) * | 2008-05-09 | 2009-03-18 | 广东科旺电源设备有限公司 | Novel high resistance self-coupled transformer |
| CN201540811U (en) * | 2009-03-09 | 2010-08-04 | 株洲南车电机股份有限公司 | Rain-proof dry-type transformer for auxiliary system of electric locomotive |
| CN202003816U (en) * | 2011-03-22 | 2011-10-05 | 江苏上能新特变压器有限公司 | Inverse transformer |
| CN202159565U (en) * | 2011-05-26 | 2012-03-07 | 上海兆启新能源科技有限公司 | Transformer for photovoltaic inverter |
| CN102646499A (en) * | 2012-05-23 | 2012-08-22 | 镇江天力变压器有限公司 | Dry type transformer with secondary iron core for electric locomotive |
| CN102867628A (en) * | 2012-09-29 | 2013-01-09 | 湖南大学 | Magnetic integration type integrated filter inductance transformer |
| CN103151147A (en) * | 2013-03-07 | 2013-06-12 | 明珠电气有限公司 | Isolation transformator for filter circuit and filter circuit system |
| CN203941798U (en) * | 2014-06-23 | 2014-11-12 | 长沙长源变压器有限公司 | Integrated high leakage reactance auxiliary transformer |
| CN104715906A (en) * | 2015-02-12 | 2015-06-17 | 明珠电气有限公司 | Dry-type transformer for photovoltaic power generation and photovoltaic inversion system |
| CN204927007U (en) * | 2015-06-25 | 2015-12-30 | 特富特科技(深圳)有限公司 | Toroidal transformer |
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| CN106328362A (en) | 2017-01-11 |
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Effective date of registration: 20220607 Address after: 471000 ancient capital science and Technology Innovation Park, No. 10 Tanggong East Road, Laocheng District, Luoyang City, Henan Province Patentee after: TEFUTE ELECTROMAGNETIC TECHNOLOGY (LUOYANG) Co.,Ltd. Address before: 518101 2B04, building 1, Gaoxinqi Science Park, Liuxian 1st Road, Bao'an 67 District, Shenzhen City, Guangdong Province Patentee before: Traftor Technology (Shenzhen) Co.,Ltd. |